How did you find out about it?

I suspected it when bf failed, but then I kind of convinced myself that wasn't the reason why and that I had wimped out on the pain. (Still not the only reason bf didn't work out.) But when her dentist brought it up this past week I wonder if I should have brought it up. Then I got to thinking about it, and I wonder why they don't routinely check for this in the hospital? Or do they, and it was missed? They knew I was trying to bf...wouldn't this be an easy thing to check for?